Churn-power.



W. s. WHITNEY.

GHURN POWER. `MPLIGATION FILED JULY22,1908.

Patented July 20, 1909.

as Q@ /Z/z//z mw mm n wf@ n RR Witnesses ANDREW. a. Gamm omrnorommnnnmlrne uNiTED sTATEs EATENT oEEioE.

WILLIAM S. WHITNEY, OF FORT SMITH, ARKANSAS.

CHURN-POWER.

To all whom 'it may concern:

Be it known that I, WILLIAM S. WHITNEY, a `citizen of the United States,residing at Fort Smith, in the county of Sebastian,

State `of Arkansas, have invented certain new and useful Improvements inChurn- Powers and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to devices for operating churns, and for likepurposes, and has for one of its objects to provide an efficient meanswhereby a 'churn may be operated with the expenditure of a relativelysmall amount of manual labor.

Another object of the invention is to provide a simply constructedapparatus arranged to utilize the reactionary forceof one or moresprings to produce the requisite motion to the churn dasher or to `thechurning paddles as the casemay be.

The invention consists in certain novel features of construction ashereaftershown and 'described and `then specifically pointed out in theclaims, and in the drawings illustrating the preferred embodiment of theinvention,

Figure 1 is a side elevation partly in sec tion of the improved device.Fig. 2 is a front elevation. y

The improved device comprises a base or platform 10 of sufficient sizeto carry the` framework of the operating mechanism: and likewise supportthe churn body 11,`

the latter suitably supported upon the latform by brackets 12 to prevent`disp acement during the churning action. The framework supporting theoperating mechanism comprises two vertical members 13-14 secured bybolts or other fastening means 15 to the base 10 and with a transversehead 16, the head overhanging the frame member 13 at 17 and providedwith a depending guide member 18, the latter provided with alongitudinal guideway 19 in its face.

Mounted for rotation transversely of the frame members 13 is a shaft 2()carrying a Specification oi' Letters Patent.

Application led July 22, 1908.

Patented July 20, 1909.

Serial N0. 444,769.

crank 21 upon its outer end, the crank have ing a longitudinal slotwhereby it may be adjustably connected to the shaft 2() to enable the"throw of the crank to be adjusted as required.

Depending from the overhanging ortion 17 is aver-tical guide rod 22, ands idably disposed upon this guide rod is a crosshead 23, the outer faceof the cross head having a reduced portion slidably disposed in theguide way 19. The cross head 23 is coupled to the crank 21 by aconnecting rod 24 so that the rotary motion of the shaft 2O willreciprocate the cross head 23. The dasher rod is represented at 25 andprovided with a head 25 at the upper endthrough which a rod 427 extends,the upper end of the rod being connected or formed integral with thecross head 23, the head 26 having a set screw 23 whereby the dasher rodmay be adjustably connected to the cross `head rod 27, and thus adjustthe position of the dasher 29 within the churn body and also to adaptthe dasher to bodies of different lengths or sizes.` By this arrangementit is obviousthat by adjusting the crank 21 upon the shaft 2O the lengthof the Hthrow" or reciprocating movement of the churn dasher may beeasily controlled and the churn dasher also adjusted to move through anydesired portion of the churn body. By this means the dasher is easilyadapted to the size of the churn body, or the amount of cream or milktherein.

Mounted for rotation between the frame members 13-14 near their upperends is a shaft 30 and similarly mounted between the frame members neartheir lower ends is another shaft 31, the shafts carrying chain pulleys32-33 over which an endless chain 34 operates. The shaft 30 is providedwith a gear 35 engaging with a smaller gear 36 on a 'countershaft 37,the countershaft also carrying a gear 33 engaging with a pinion 39 onthe shaft 20. By this arrangement motion imparted to the chain 34 willbe transmitted through the gearing to the shaft 2O and its crank 21 andthence through the rods 24 and 27 to the dasherrod 25 as will beobvious, the gearing being arranged. as

shown so that a relatively slow motion of the chain will impart arelatively rapid motion to the dasher.

Connected to the upper portion of the head member 16 are two brackets40-41, extending in opposite directions. lThe bracket 4() is supportedat its outer end by a stay rod 58, while the bracket 41 is supported atits outer end by a stay rod 59, the

ower ends of the stay rods being secured to the base 10 in any suitablemanner. The bracket 41 is provided with a cable sheave 42 over which acable 43 passes, one end of the cable connected at 44 to 'the platform10 and the other end of the cable connected to a hook 45, the hook beingconnected to one end of a spring 46, as shown. The opposite end of thespring is connected at 47 to the platform 10, and the cable 43 isprovided at intervals with rings 48 or other suitable devices wherebyweights 49 may be coupled to the cable. The cable is also provided witha foot engaging stirrup 50 as shown. The spring 46 is located close tothe pulley 33 or contiguous to the chain 34, so that when the outer sideof the cable 43, or the portion having the weights 49 and the stirru 50is moved downwardly the spring 46 wil be distended or stretchedupwardly, and when this has been accom lished by downward pressureapplied to t e stirrup 50, the hook 45 may be engaged with one of thelinks of the chain and the reactionary force of the spring utilized todraw the chain downwardly on one side and thus rotate the chain wheels32-33 and thus operate the chain for a length of time corresponding tothe length of the chain andthe force exerted thereby. The weights 49 areutilized merely to assist in stretching the spring and lessening thelabor required to accomplish that result, and as soon as the spring hasbeen stretched to the required extent, and engaged with the chain 34 byits hook 45, the weights are removed so that no resistance is offered tothe downward pull of the spring. A similar spring 51 is coupled at 52 tothe bracket 40 while a pulley 53, corresponding to the pulley 42 isconnected to the base 10 and a pull cable 54 connected to the hook 55 ofthe spring and thence carried around the pulley 53 and upwardly to thebracket 41 to which it is connected at 59. The cable 54 is provided withdetachable weights 56 similar to the weights 49, a stirrup 57 beingattached to the outer side of the cable in position to be ulled upwardlyby the operator to distend t ie spring downwardly and engage its hook 55with the chain near the pulley 33. By this means it will be obvious thatif the cable 43 be operated by the stirrup 50 to pull the spring 46upwardly and the cable 54 operated by the pull handle 57 to distend thespring 51 downwardly and the hooks 45 and 55 engaged with the chain atits opposite sides, the two springs will operate simultaneously torotate the shaft 30, and thereby operato the chain dasher as beforedescribed, the employment of the two churns doubling the force of thedevice, as will be obvious.

The springs 46-51 will preferably be of suiiicient length so that whendistended and engaged with the chain 34 the dasher 29 will be operatedfor a su'liicient length of time to complete the churning action but iffor any reason the churning action is not accomplished when the force ofthe springs is eX- hausted, they may be again distended and engaged withthe chain and thus extend the time of the churning action indefinitely.

By this simple arrangement it will be obvious that the churning actionmay be accomplished by the expenditure of a relatively limited amount oflabor by the operator, and is only required to actuate the stirrup 50and the pull handle 57 to distend the spring and engage the same withthe hooks 45 55 with the chain when the churning action thereafter isautomatic.

The improved device is simple in construction, can be inexpensivelymanufactured, and applied to any of the various forms of churns, and adated to churns of various sizes, and to regu ate the throw of the dasherrod to any required extent, as above described.

While the structure shown is the preferred arrangement of the mechanismit will be understood that it is not desired to limit the construction,but changes and modifications may be made therein within the scope ofthe claims without departing from the principle of the invention orsacriiicing any of its advantages.

What is claimed, is

1. A device of the class described comprising an endless chain mountedfor rotation, a spring, a cable connected to said spring and operatingto distend the same, means for detachably coupling said spring to saidchain and a plurality of weights detachably coupled to said cable.

2. A device of the class described comprising two shafts spaced apartand carrying chain wheels, an endless chain operating over said wheels,means for transmitting the motion from said chain, springs at each sideof said chain, said springs adapted to be alternately coupled to saidchain when in distended positions to im art motion thereto.

3. A device of the c ass described comprising a base, a frame comprisingspaced side members with a head portion laterally extended and withvertical guides depending from said extension, a shaft mounted forrotation through said frame members ntersprings, and Weights detachabiycoupled to 10 mediate the ends, a crank carried by said' each of saidcables.

shaft, a cross head slidably engaging said in testimony Whereof,IaHiX mysignature, guides, shafts spaced apart through said in presence of twoWitnesses.

frame members chain Wheels carried by said A spaced shafts, rheans forimparting the mo- WHJLIAM S' WIH'I NEY' tion of said spaced shafts tosaid intermediate Witnesses:

shaft, a spring arranged at each side of said CHAS. C. S. CHAMBERS,

chain, a pull cord connected to each of said BENJIMAN F. KANE.

